A mosquito sample in Grapevine tested positive for carrying the West Nile Virus in the 1500 block of North Dooley Street today, according to city officials. Mosquito control ground spraying will take place within a half mile radius of the 1500 block of North Dooley Street on Thursday at 10 p.m. While the insecticide is approved by the Environmental Protection Agency for treatment, city staff is urging residents should take the following precautions during spraying: • Residents in the above area should avoid contact with the spray by staying indoors. • Keep windows and doors closed during spraying. • People inside vehicles while trucks are actively spraying should remain in their vehicles with the windows up and the air conditioner on until the trucks pass and the spray is no longer visible. Prevent Mosquito Breeding: Residents should eliminate any standing water to prevent mosquito breeding and the spread of West Nile Virus. Breeding places for mosquitoes include swimming pools that are not kept clean, stagnant ponds, pet watering dishes, birdbaths, potted plants, old tires, empty containers, toys, clogged rain gutters and French drains. Standing water should be eliminated promptly. Complimentary mosquito "dunks" that may be placed in standing water that cannot be drained are available at the Municipal Service Center, 501 Shady Brook from 7 a.m. to 4 p.m., Monday-Friday for Grapevine residents. To report standing water or mosquito problems, Grapevine residents should call 817-410-3330. For additional information on mosquito control, visit GrapevineTexas.gov.